Porphyrin/calixarene self-assemblies in aqueous solution

Kubát, Pavel; Lang, Kamil; Lhoták, P.; Janda, Pavel; Sýkora, Jan; Matějíček, P.; Hof, Martin; Procházka, K.; Zelinger, Zdeněk

doi:https://dx.doi.org/10.1016/j.jphotochem.2008.02.010

Number of the records: 1

Porphyrin/calixarene self-assemblies in aqueous solution

1.

SYSNO ASEP	0309616
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Porphyrin/calixarene self-assemblies in aqueous solution
Title	Samoorganizované porphyrin-kalix[4]arenové struktury ve vodných roztocích
Author(s)	Kubát, Pavel (UFCH-W)_{RID, ORCID, SAI} Lang, Kamil (UACH-T)_{SAI, RID, ORCID} Lhoták, P. (CZ) Janda, Pavel (UFCH-W)_{RID, ORCID} Sýkora, Jan (UFCH-W)_RID Matějíček, P. (CZ) Hof, Martin (UFCH-W)_{RID, ORCID} Procházka, K. (CZ) Zelinger, Zdeněk (UFCH-W)_{RID, ORCID}
Source Title	Journal of Photochemistry and Photobiology A-Chemistry. - : Elsevier - ISSN 1010-6030 Roč. 198, č. 1 (2008), s. 18-25
Number of pages	8 s.
Language	eng - English
Country	CH - Switzerland
Keywords	cationic porphyrin ; calix[4]arene ; thiacalix[4]arene
Subject RIV	CF - Physical ; Theoretical Chemistry
R&D Projects	GA203/07/1424 GA ČR - Czech Science Foundation (CSF)
	GA203/06/1244 GA ČR - Czech Science Foundation (CSF)
	KAN100500652 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	LC06063 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z40400503 - UFCH-W (2005-2011)
	AV0Z40320502 - UACH-T (2005-2011)
UT WOS	000257036700004
DOI	https://doi.org/10.1016/j.jphotochem.2008.02.010
Annotation	The variations of calix[4]arene linkages between phenolic units and of the cationic substituents on the porphyrin periphery affect modes of interaction and photophysical parameters of porphyrin/calixarene complexes. 5,10,15,20-Tetrakis(N-methylpyridinium-2-yl)porphyrin (TMPyP2) forms stable complexes with tetrasulfonated calix[4]arene, thiacalix[4]arene and sulfonylcalix[4]arene of the 1:1 stoichiometry with the binding constants above 106, (9.3 +- 0.9) x 105 and (8.3 +- 0.8) x 104 M-1, respectively. We suggest that quenching of the singlet and triplet states of TMPyP2 involves fast electron transfer between excited singlet and triplet porphyrin states and phenolates. Surprisingly, both 5,10,15,20-tetrakis(N-methylpyridinium-4-yl)porphyrin (TMPyP4) and 5,10,15,20-tetrakis(4-trimethylammoniophenyl)porphyrin (TMAPP) behave differently.
Workplace	J. Heyrovsky Institute of Physical Chemistry
Contact	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Year of Publishing	2009

Number of the records: 1